The BIFF rule

BIFF-regeln

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The short answer

In a Swedish main clause, inte comes after the finite verb: jag dricker inte kaffe. In a subordinate clause it comes before it: ...att jag inte dricker kaffe. The mnemonic Swedes learn at school is BIFF — i BIsats kommer Inte Före det Finita verbet, "in a subordinate clause, inte comes before the finite verb". The same move applies to aldrig, alltid, ofta, kanske and the other clause adverbs.

BIFF = Bisats Inte Före Finit verb, in subclauses, 'inte' and other adverbs go BEFORE the verb.

In main clauses, 'inte' goes after the verb. In subclauses (att, om, när, etc.), it goes before.

Main clause versus subordinate clause

Main clause versus subordinate clause
TypeSentencePosition of inte
MainJag dricker inte kaffeafter the verb
SubordinateHon sa att jag inte dricker kaffebefore the verb
MainHan kommer aldrig i tidafter the verb
SubordinateEftersom han aldrig kommer i tid…before the verb
SubordinateOm du inte vill, så säg tillbefore the verb

Words that start a subordinate clause

Words that start a subordinate clause
WordMeaning
attthat
omif / whether
närwhen
eftersombecause
fastän / trots attalthough
somwho / which / that
medanwhile
innanbefore

In a sentence

  • Jag dricker inte kaffe (main)

    I don't drink coffee

  • ...att jag inte dricker kaffe (sub)

    ...that I don't drink coffee

  • ...eftersom hon aldrig äter kött

    ...because she never eats meat

What learners get wrong

  • Jag vet att han dricker inte kaffe.

    Say instead: Jag vet att han inte dricker kaffe.

    Att opens a subordinate clause, so inte moves in front of the verb. The main-clause order sounds distinctly foreign here.

  • …eftersom jag kan inte komma.

    Say instead: …eftersom jag inte kan komma.

    With two verbs, inte goes before the finite one — the one that carries the tense — not before the infinitive.

Questions people ask

What does BIFF stand for?
I BIsats kommer Inte Före det Finita verbet — in a subordinate clause, inte comes before the finite verb. It is the standard mnemonic in Swedish schools, and it happens to spell the word for steak, which is why it sticks.
Does BIFF apply to adverbs other than inte?
Yes. It covers the clause adverbs as a group: aldrig, alltid, ofta, sällan, redan, kanske, nog, ju. All of them sit before the finite verb in a subordinate clause and after it in a main clause.
How do I recognise a subordinate clause?
By the word that opens it: att, om, när, eftersom, fastän, som, medan, innan and the other subordinating conjunctions. A useful test is that a subordinate clause cannot stand alone as a sentence — och han kom is a main clause, att han kom is not.

Sources

Usage checked against Isof, the Swedish government's language institute, and Svenska Akademien. Where usage is genuinely divided, this page says so rather than inventing a rule.

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Subordinate Clauses

Bisatser

B1 · 1 lesson · 30 XP

Complex sentences with att, som, när

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